Fairfield, IA Weather & Climate Normals
Fairfield's real weather, in one number
Fairfield, IA scores 45/100 on this site's reading of NOAA's own 30-year normals: strongly seasonal. Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. 5 of the year's 12 months average between 55 and 75°F, the range this site counts as mild.
Fairfield's hottest and coldest months
Fairfield's hottest month is Jul, averaging 74°F; its coldest is Jan, averaging 22°F, a 51.8°F swing across the year, one of the widest gaps in this dataset.
Fairfield's weather across the year
| Month | Avg high | Avg low | Precip | Snow |
|---|---|---|---|---|
| Jan | 31°F | 14°F | 1.52in | 6.2in |
| Feb | 36°F | 18°F | 1.8in | 7.2in |
| Mar | 49°F | 28°F | 2.4in | 2.7in |
| Apr | 62°F | 39°F | 3.71in | 1in |
| May | 71°F | 50°F | 5.51in | 0in |
| Jun | 81°F | 60°F | 5.11in | 0in |
| Jul | 84°F | 64°F | 3.96in | 0in |
| Aug | 83°F | 61°F | 3.83in | 0in |
| Sep | 76°F | 53°F | 3.58in | 0in |
| Oct | 63°F | 41°F | 3in | 0.2in |
| Nov | 48°F | 30°F | 2.28in | 0.9in |
| Dec | 35°F | 20°F | 1.72in | 3.5in |
May, Jun, Jul, Aug, and Sep are the best time to see Fairfield at its mildest; the rest of the year, plan around Jan's cold.
Rain and snow in Fairfield
Fairfield averages 38.42in of precipitation a year across roughly 110 days with measurable rain or snow, and 21.7in of snow a year.
Where Fairfield ranks
Fairfield ranks 3487 of 4876 US cities in this dataset for comfort score, and 19 of 85 within IA. About 9,511 people live there.
If you need tomorrow's forecast, not the 30-year average
Everything above is a 30-year average from Fairfield, IA US, 1.2 miles from Fairfield, not a prediction for any specific day.
More on how this is worked out
How the comfort score is calculated · Why some cities show no snow or rain figure